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A direct-acting relief valve

A technology of direct-acting overflow valve and valve sleeve, which is applied in safety valves, balance valves, valve devices, etc., can solve problems such as large dimensions, unstable performance of multi-way valves, and difficulties in mass production of multi-way valves, achieving Compact structure, improved stability and reliability, and the effect of avoiding the failure of the whole valve

Active Publication Date: 2017-02-15
BEIJING HUADE HYDRAULIC INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing direct-acting relief valves on the market have relatively large dimensions, which are not suitable for use in multi-way valves, or are assembled from loose parts, and cannot form independent functional units, which hinders mass production of multi-way valves. It brings great difficulties and even leads to unstable performance of the multi-way valve

Method used

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  • A direct-acting relief valve
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Embodiment Construction

[0041] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, Features and their functions are described in detail below.

[0042] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of specific embodiments, it should be possible to obtain a deeper and more specific understanding of the technical means and effects of the present invention to achieve the intended purpose, but the attached drawings are only for reference and description, and are not used to explain the present invention. be restricted.

[0043] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 and Figure 7 shown, figure 1 It is a sectional view of the direct-acting relief valve o...

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Abstract

The invention discloses a direct-acting overflow valve. The direct-acting overflow valve comprises a valve sleeve, a valve base, a cone valve core, a pressure spring, a pressure adjusting device and first sealing pieces, wherein a through hole penetrating through two opposite end surfaces of the valve sleeve is formed in the valve sleeve, and is formed to an oil inlet in the end surface of one end of the valve sleeve; the pressure adjusting device is arranged at the other end of the valve sleeve; the valve base is arranged in the through hole, and is close to the oil inlet; the cone valve core is arranged in the through hole, and two ends thereof respectively fit the valve base and the pressure adjusting device; the pressure spring is arranged in the through hole, and coats on the cone valve core, and two ends of the pressure spring are respectively pressed against a limiting surface of the cone valve core and the pressure adjusting device; a first sealing groove is circularly formed in the outer surface of the valve sleeve corresponding to the valve base; an outer thread section is additionally arranged on the outer surface of the valve sleeve; a second sealing groove is additionally and circularly formed in the outer surface of the valve sleeve between the outer thread section and the pressure adjusting device; an oil return port communicated with the through hole is formed in the valve sleeve between the valve base and the outer thread section; and the first sealing pieces are respectively arranged in the first sealing groove and the second sealing groove.

Description

technical field [0001] The present invention relates to a direct-acting relief valve for pressure control, in particular to a direct-acting relief valve with a novel structure with reliable performance and compact connection for the multi-way valve to control the pressure regulation and pressure limiting of the oil circuit. valve. Background technique [0002] The direct-acting relief valve is a component used for pressure regulation and pressure limitation of hydraulic system control. For the multi-way valve to control the oil circuit, in the pressure control, not only the reliable performance of the direct-acting relief valve is required, but also the compact structure of the direct-acting relief valve used in the multi-way valve is required. At present, most of the existing direct-acting relief valves on the market have relatively large dimensions, which are not suitable for use in multi-way valves, or are assembled from loose parts, and cannot form independent functiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/06
CPCF15B13/02F16K17/06
Inventor 杨晓东潘伟彭刚王志民高洪慧
Owner BEIJING HUADE HYDRAULIC INDAL GROUP
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